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Sawdust substrate bags with filter caps on racks

Sawdust substrate bags closed with plastic necks and filter caps, stacked for incubation at a farm in the Cameron Highlands, Malaysia.

Media ID: MF-OPEN-STERILE-SUBSTRATE-BAGS-FILTER-CAPS-CAMERON-HIGHLANDS-MALAYSIA-01
Rights: LICENSED
Diagnostic status: not applicable
Record checked: 2026-09-24

Rows of clear plastic substrate bags lying on their sides, each closed with a black cap and a small filter.

Technical caption

What this shows

Filter caps let the bag exchange air while keeping spores out. The species, recipe and sterilisation schedule are not recorded for this photograph.

Confirmation basis: Subject, location and authorship follow the Wikimedia Commons file record; the image was inspected before publication and no production claim is inferred.

Evidence limit

What this does not prove

This is a real, open-licensed contextual image. It does not establish this platform's farm, operating setpoint, construction specification, diagnosis, yield or commercial result.

Public provenance

Traceable without exposing private metadata.

Source class: EXTERNAL OPEN MEDIA
Owner: Arne Müseler / Wikimedia Commons
Usage: CC BY-SA 3.0 DE; derivative resized and converted to WebP without substantive visual alteration.
Consent: not_required
People visible: No
ML training: Not allowed
Source record: Open source page
Licence: CC BY-SA 3.0 DE